Sharpie Extreme Permanent Markers will work on almost on all surfaces and they can withstand Mother Nature's wrath. With extremely resilient fade-resistant, quick-drying ink, these markers pack a punch against glaring UV rays, pouring rain, snowfall, windblasts, mud baths, and more.

Sharpie® Extreme permanent markers have high-contrast ink that resists fading when exposed to harsh UV rays, rain, snow, and even mud. (Great for outdoor gear, sports equipment, backpacks and water bottles) Sharpie Extreme delivers bold color and can be used on most surfaces, including plastic, glass and wood.

Permanent markers are waterproof. A permanent marker is a felt tip pen using indelible ink that writes on most surfaces, even glass or polished surfaces. The ink in permanent markers is waterproof and cannot be washed off with water.

But the new Sharpie Extreme Permanent Marker uses a specially formulated ink that delivers fade resistant ink with bold colors that stays put. The ink delivers up to +96hrs in ultraviolet exposure and increased adhesion on most surfaces.

These versatile markers with resilient permanent ink work on roughly any surface for the job or craft that you need. From art pens to drawing pens, Sharpie gets the job done for all projects and assignments.

It is a valve action marker, which requires a pumping action. The black ink in the Fine, Ultra-Fine, Twin Tip, Chisel, Retractable, Mini and Super is permanent ink. The principle solvents are alcohols, but they also contain ethylene glycol monobutyl ether. All other Sharpie ink colors are Permchrome ink.

How long will a Sharpie Last Unopened? Answer: Sharpie Markers will last 2-3 years if left unopened in normal temperatures.

Lithographic fade-resistant printing inks, by industry standard, will hold color for up to three months of exposure to sunlight.

Mark Like a Pro With the Sharpie Industrial, you can write on almost any surface, even extremely hot surfaces - up to 500 degrees Fahrenheit.

The permanent ink of Sharpie pens is hydrophobic. It will not dissolve in water. The permanent ink WILL dissolve in rubbing alcohol though.

Sharpie Ultra Fine Point Marker – Best Overall The Sharpie Ultra Fine Point Marker will make the right impressions. Its high-quality ink is dark, intense, and vibrant.

2-3 years Sharpie Markers will last 2-3 years if left unopened in normal temperatures.